Flexible or rolling metallic shutter



E. R. PROBERT.

FLEXIBLE' OHROLLING METALLIC SHUTTER. APPLICATION FILED JUNE 5. 1920.

lAgsfig g, Z .Patented Dec. 5,1922.

ATTOF/VIX Patented Dec. 5, 1322.

UNHTEEDD STATES EDWIN R. PROBERT, F COVINGTON, KENTUCKY.

FLEXIBLE OR ROLLING METALLIC SHUTTER.

Application filed June 5, 1920. Serial No. 386,706.

To all whom it may concern:

locking-joint embodying Be it known that I, EDWIN R. PRoBER'r, a citizen of the United States of America, and a resident of :Covington, in thecounty of Kenton and State of Kentucky, have invented a certain new and useful Improvement in Flexible or Rolling Metallic Shutters, of which the following is a specification.

This; invention relates to rolling, flexible metallic doors or shutters of the pivotallyjointed or interlocking, slatted type, and its principal object is to provide pivotal-joints between a vertical series of horizontal slats that are adapted to readily and cleanly shed water and dirt without tendency of either to lodge or accumulate in such joints to clog, unduly rust or corrode or otherwise render them ineflicient for convenient and practical use, such objects being attained by the simple structure that is fully hereinafter described and clearly shown in the accompanying sheet of drawings, in which- Figure 1 is a fragmentary, sectional elevation of'the improved shutter, taken on the vertical, dotted-line 1, 1, of Fig. 2, and showing the side guide-way broken off Fig. 2, a front elevation of the outside face of the same, with the said guide-way broken off and, also, the series of slats broken off Fig. 3, a vertical cross-section of one of my improved slats to show the joint-structure and one double-curve form of slat, together with a re-inforcing-rib; Fig. 4, a view of the slat, similar to Fig. 3, but showing a straight or plane form of slat, but withouta re-inforcingFrib 7 Fig. 5, a view similar to Fig. .3 and to ig. 4, of the slat, but with the body-portion thereof bent or flexed along approximately a central line lengthwise of the slat, and, also, provided with a re-inforcing-rib; Fig. 6, a cross-section of the pivotal, intermy invention herein, the slats being shown broken off and ex.- tending vertically above and below the said joint; and Fig. 7 a view of a vertical series of three of the curved slats seen in Fig.3, and showing several of my improved pivotal, interlocking joints, together with a number of the curved re-inforcing-ribs.

8 indicates the body-portion of each of the slats seen in the drawings, and 9, 9 (in Fig. 1) the. oppositely-extended, lateral bends made in the riveted end-blocks for'the slats adapted for suitable engagement in the contact with the outer, fragmentary perspective vertical guide-wa s 10, one of the latter being shown in ig. 1 and extending outwardly from the doorway or other opening 11 thatis to be closed by the rolling-shutter.

For general purposes or for most common use I prefer the form of slat in Figs. 1, 3 and 7, in which the uncovered or bare body-portion is of .double or reverse curve, or reverse '8 shape in cross-section and strengthened or re-inforced by means of the outwardly disposed or extended struck-up ribs 12, but it is quite evident that the straight or plane structures ofF i s4 and 5, with and without the ribs, can e conveniently and successfullyused as occasion may re uire. 1

n each form, however, ofuncovered or bare slat, I provide a joint structure shaped substantiallythus:

The upper longitudinal un-ribbed edge 13 of the slat is flanged or bent, to the left-hand, to a considerable depth and at a slight obtuse-angleto the body-portion 8 and then reversed or continued, to the'right-hand, into a right-turned coil 14, a full circle, more or less, and without closing, andthenthe lower longitudinal un-ribbed edge 15: is similarly flanged or bent, to the right-hand, also to a considerable depth the reverse of that of the edge 13, with a correspondin left-turned coil 16, such slightly openico' s 14 and 16 and slightly inclined but deep flanges 13 and 15 being duly brought together in adjacent slats so that the said oppositely or reversely turned coils may interlock in a free, pivotal or hinged relation, the coils preventing any water or dirt lodging or entering between the slats, and the inclined upper facesof both sets of oppositely or reversely bent flanges 13 and 15 being in corresponding planes in the respective slats and effectually shedding or repelling any falling or otherwise driven or beaten water and dust, dirt, or other foreign matter .that may come into front faces thereof and thereby preventing entrance through the interlocked hinged joints into the interior of the building.

The upturned coils 14 and the downturned ones 16 become freely interlocked in the manner best shown in Fig. 6, when in use, and it can readily be seen, in that particular view, how water and dirt will be very eifectually shed by the outer or upper face of the upper inclined flange 13of the lower slat, as well as prevented from passlng through the joint by the internal coil 14 which repels the same before it can pass onward beneath the lower flange 15 of the upper slat into the interior of the building beyond the inner face of the shutter.

Heretofore, heavy sheet material has had to be used in the manufacture of rolling, slatted shutters in order that the upper slats could carry the wei ht of those below, and, more especially, if t e slats were corrugated or curved ones, in order to prevent/their flattening out or the curves breaking down. My provision of outwardly disposed or extended ribs 12 is an important adjunct herein and to any slatted form of rolling shut- .ters, as they are especially efiective in reinforcing or strengthening the metallic slats so that very. light material can be used very economically in their structure and a great saving in expense thereby result.

It will be seen, in the several views of the drawing, and especially in Figs. 1, 2' and 7, that the upper faces of the oppositely or reversely bent, deep flanges 13 and 15 and the raised-rib sides of the slats are toward the front or outer side of the rolling-shutter so as to provide the desired repellant'drainage of the falling rain or water, and the oppositely or reversely turned or disposed coils, best seen in Fig. 7 are flexibly interlocked so that they freely hinge, each on the other, with the downturned-coils 16 to the front and so that they envelop the outer arcs of the upturned-coils 14 of the succeeding slats below, to prevent entrance of foreign matter into and through the joints.

I claim 1- A rolling, flexible, metallic shutter comprising a vertical series of horizontal, pivotally-interlocked, vertically ribbed sheetmetal slats, each slat having an upwardlyturned, inclined, deep-flange formation extending at an obtuse-angle rearwardly from the upper ed e of the body-portion, a forwardly-turne approximately-closed coil along the outer edge of the said upper flangeformation, a downwardly-turned, inclined, deep flange-formation extending at an obtuse-angle forwardly from the lower edge of the said body-portion and corresponding to the said upper flange-formation, and a rearwardly-turned approximately-closed coil along the outeredge of the said lower flange-formation, said coils flexibly and jointedly interlocking with adjoining coils of adjoining slats in the said series, whereby the upper inclined face of each of said rea y water-shed, and the said oppositely disposed or turned coils, when interlocked, form dirt and other foreign-element barriers against entrance within the shutter, substantially as shown and described.

EDN R. PROBERT.

flange-formations provides a decided and 

